CN114587158A

CN114587158A - Cooking utensil

Info

Publication number: CN114587158A
Application number: CN202011438606.5A
Authority: CN
Inventors: 曹代科; 吴波; 刘丰收; 陈飞帆
Original assignee: Guangdong Midea Consumer Electric Manufacturing Co Ltd
Current assignee: Guangdong Midea Consumer Electric Manufacturing Co Ltd
Priority date: 2020-12-07
Filing date: 2020-12-07
Publication date: 2022-06-07

Abstract

The application discloses a cooking appliance, which comprises a shell, an object carrying piece, a fan assembly and a flow guide piece, wherein the shell is provided with an accommodating cavity, the object carrying piece and the fan assembly are both positioned in the accommodating cavity, and the fan assembly is positioned on the opposite side of the food placing side of the object carrying piece; the flow guide piece is arranged between the fan assembly and the object carrying piece, and the flow resistance of the outer side of the flow guide piece is smaller than the flow resistance of the center of the flow guide piece. This application cooking utensil can promote food heating homogeneity.

Description

Cooking utensil

Technical Field

The application relates to the field of household appliances, in particular to a cooking appliance.

Background

Some existing cooking appliances, such as ovens, air fryers, etc., utilize hot air to heat food materials. However, in the cooking process, the food material located at the center of the object carrying piece is difficult to be sufficiently heated, so that the food material is not uniformly colored, and the phenomena that part of the food material is excessively heated and the part of the food material is insufficiently heated exist, thereby affecting the user experience.

Disclosure of Invention

The application provides a cooking utensil to solve cooking utensil culinary art in-process, some eat material overheated, some eat the not fully heated problem of material.

In order to solve the above technical problem, the present application provides a cooking appliance, which includes: a housing formed with an accommodating chamber; the object carrying piece is arranged in the accommodating cavity; the fan assembly is arranged in the accommodating cavity and is positioned on the side opposite to the food placing side of the object carrying body; and the flow guide part is arranged between the fan assembly and the object carrying part, and the flow resistance of the outer side of the flow guide part is smaller than the flow resistance of the center of the flow guide part.

Wherein, the water conservancy diversion spare is formed with a plurality of intervals mouth, in the direction of the center of water conservancy diversion spare to the edge, the size of interval mouth increases gradually on the unit area.

Wherein, the water conservancy diversion spare includes return air circle and a plurality of water conservancy diversion muscle of connecting the return air circle, forms the interval mouth between the adjacent water conservancy diversion muscle.

The flow guide piece also comprises a flow guide plate, wherein the flow guide plate is provided with a return air inlet and flow guide holes, the return air inlet is arranged in the center of the flow guide plate, and the area of the flow guide holes in unit area is gradually increased in the direction from the center to the edge of the flow guide plate; the air return inlet and the air return ring are both communicated with the fan assembly.

The size of the flow guide holes is gradually increased from the center of the flow guide plate to the edge, and the density of the flow guide holes is equal from the center of the flow guide plate to the edge; or the sizes of the diversion holes are equal from the center to the edge of the diversion plate, and the density of the diversion holes is gradually increased from the center to the edge of the diversion plate; or the size and the density of the diversion holes are gradually increased from the center to the edge of the diversion plate.

The air return ring comprises a first end and a second end which are opposite, the opening size of the first end is larger than that of the second end, and the first end and the second end are in arc transition connection.

The guide piece comprises a guide plate, a return air inlet and guide holes are formed in the guide plate, the return air inlet is formed in the guide plate, and the guide holes form spacing openings.

The cooking utensil comprises a heating piece, the heating piece is arranged in the containing cavity and is located on the back side of the food placing side of the object carrying piece, and working airflow generated by the fan component flows to the object carrying piece through the heating piece.

The fan assembly comprises a working blade, and the projection of the heating element in the direction of the rotating shaft of the working blade is positioned on the periphery of the working blade.

Wherein, the flow guiding part is arranged around the working blade, and the heating part is positioned between the flow guiding part and the carrying part; or the heating part is arranged around the working blade, and the flow guide part is positioned between the heating part and the loading part.

Wherein, the casing includes: the seat body forms an accommodating cavity which is provided with an opening; the object carrying piece is arranged at the opening; the cover body is arranged on the seat body in a covering mode.

The fan assembly comprises a motor, a working blade and a radiating blade, wherein the working blade and the radiating blade are connected to an output shaft of the motor; the pedestal includes: the base is provided with a motor accommodating boss, and a motor output shaft penetrates through the motor accommodating boss; the connecting cover is covered on the motor accommodating boss and is provided with a cavity; the radiating blades are positioned in the cavity, the motor output shaft penetrates through the connecting cover, and the part penetrating through the connecting cover is connected with the working blades; wherein the motor accommodating boss is respectively communicated with the cavity and the outside air.

This application cooking utensil includes the casing, carries article, fan subassembly and water conservancy diversion spare, and the casing is formed with the holding chamber, carries article and fan subassembly and all is located the holding intracavity, and the fan subassembly is located the food of carrying the article and places the looks dorsal part of side to it has the low density to utilize the hot gas flow, the characteristics that rise naturally, thereby to carrying the motion of article. Furthermore, the flow guide piece is arranged between the fan assembly and the object carrying piece, and the flow resistance of the outer side of the flow guide piece is smaller than the flow resistance of the center of the flow guide piece, so that the change of the flow resistance of the air flow is changed, the uniform distribution of the air flow in the horizontal direction is realized, and the heating uniformity of food is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for the description of the embodiments will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:

FIG. 1 is an exploded view of an embodiment of the cooking appliance of the present application;

FIG. 2 is a side view of the cooking appliance of FIG. 1;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

FIG. 4 is a schematic airflow diagram of the cooking appliance of FIG. 1;

FIG. 5 is a perspective view of the return air ring and the air-guide ribs shown in FIG. 1;

FIG. 6 is a perspective view of the return collar shown in FIG. 1;

fig. 7 is a schematic view of the baffle of fig. 1;

fig. 8 is a schematic structural view of B shown in fig. 3.

Reference numerals: 1. a housing; 11. an accommodating cavity; 12. a base body; 121. a base; 1211. the motor accommodating boss; 122. a connecting cover; 13. a cover body; 2. carrying an object; 3. a heat generating member; 4. a fan assembly; 41. a working blade; 42. a motor; 43. a heat dissipating fin; 51. a return air ring; 511. a first end; 512. a second end; 52. a flow guiding rib; 521. a connecting port; 53. a baffle; 531. an air return opening; 532. and (4) flow guide holes.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present application, a cooking appliance provided by the present invention is further described in detail below with reference to the accompanying drawings and the detailed description.

Referring to fig. 1, 2, 3 and 4, fig. 1 is an exploded view of an embodiment of a cooking appliance of the present application; FIG. 2 is a side view of the cooking appliance of FIG. 1; FIG. 3 is a cross-sectional view A-A of FIG. 2; fig. 4 is a schematic airflow diagram of the cooking appliance of fig. 1.

The cooking appliance in the embodiment can be an oven, an air fryer and the like. Cooking utensil includes casing 1, carries article 2 and fan subassembly 4, is formed with holding chamber 11 in the casing 1, and wherein carries article 2 and fan subassembly 4 and all sets up in holding chamber 11. Wherein the carrier elements 2 are used for placing food.

The fan assembly 4 is used to create a working air flow. Because the fan assembly 4 is positioned on the opposite side of the food placing side of the object carrying body 2, the airflow formed by the fan assembly 4 forms hot airflow, and the hot airflow has the characteristics of low density and natural rising, thereby moving towards the object carrying body 2 and permeating the food on the object carrying body 2. The carrier 2 may be a baking tray, a basket, etc.

Because of fan subassembly 4 produces high-speed air current and carries the heat and get into holding chamber 11, partial fan subassembly 4 is under the negative pressure effect, and high-speed air current flows out along the blade lateral wall, and the central point department of being close to flows back, leads to carrying 2 central point of thing position air current velocity of flow low, and the culinary art effect is poor, causes horizontal direction culinary art effect inhomogeneous. In order to promote the homogeneity of air current in the horizontal direction, and then promote the homogeneity of food heating, cooking utensil still includes the water conservancy diversion spare in this embodiment, the water conservancy diversion spare sets up in fan subassembly 4 and carries between the thing piece 2, wherein the water conservancy diversion spare outside flow resistance is little, water conservancy diversion spare central resistance is big, so that the water conservancy diversion spare outside flow resistance is less than water conservancy diversion spare central flow resistance, and then change the air current flow resistance and change, realize the air current evenly distributed of horizontal direction, and then promote food heating homogeneity, obtain better culinary art effect.

Furthermore, the guide part is provided with a plurality of spacing openings, and in the direction from the center of the guide part to the edge, the size of the spacing openings in unit area is gradually increased, the change of the flow resistance of the air flow is changed, the air flow in the horizontal direction is uniformly distributed, the food heating uniformity is further improved, and the better cooking effect is obtained. Specifically, the diversion piece is located the holding chamber 11, and the diversion piece sets up between fan subassembly 4 and year thing piece 2. The gap of the spacing opening at the position close to the center of the flow guide piece is small, so that the flow resistance of the airflow is large; the gap of the spacing opening at the position close to the outer side of the flow guide piece is large, and the flow resistance is large, so that the air flow in the horizontal direction is uniformly distributed, and the food heating uniformity is improved. The size of the spacing opening formed by the flow guide part can be increased at equal intervals or unequal intervals, and the flow guide part is only required to be gradually increased in size of the spacing opening in unit area.

The different structures of the carrier elements 2 result in different air flow directions. When carrying 2 bottoms of thing and corresponding 4 central points of fan subassembly and putting and be provided with the backward flow hole, and carry 2 bottoms of thing and do not set up the following-mentioned a plurality of trompils in the periphery department that 4 central points of fan subassembly put the department, the even air current that fan subassembly 4 formed enters into the space between 2 lateral walls outsides of thing and the holding chamber 11 of carrying, to carrying 2 upper portions of thing motion, and flow in and carry 2 bottoms of thing, thereby heat food, and enter into the fan subassembly from the backward flow hole, participate in next circulation.

If the bottom of the carrier 2 is provided with a backflow hole corresponding to the central position of the fan assembly 4, and the periphery corresponding to the central position of the fan assembly 4 is also provided with a plurality of subsequently mentioned holes, the uniform airflow formed by the fan assembly 4 directly enters from the holes, and after food is uniformly heated, returns to the fan assembly 4 from the backflow hole and participates in the next circulation. The open pore and the backflow pore may be the same or different in structure, and are not limited herein.

Referring to fig. 5 and 6, fig. 5 is a perspective view of the air return ring and the air guide ribs shown in fig. 1; fig. 6 is a perspective view of the return air duct shown in fig. 1.

In an embodiment, referring to fig. 3 and 4, the flow guiding member includes a return air ring 51 and a flow guiding rib 52, wherein the flow guiding member is connected to the return air ring 51. A connection opening 521 is formed between adjacent ribs 52, and the connection opening 521 is the above-mentioned spacing opening. On the adjacent water conservancy diversion muscle 52 was put to the outside from the center, the size of interval mouth is crescent to change the air current flow resistance, make the speed on the air current horizontal direction consumed, the air current direction converts to carrying 2 direction movements of article, avoids the air current to beat at the horizontal direction soon, has promoted the circulation efficiency of air current in holding chamber 11, and then promotes the homogeneity of food heating.

Because the sizes of the gaps between the adjacent flow guide ribs 52 from the center to the outer side are different, a plurality of adjacent flow guide ribs 52 are distributed in a radial shape. The flow guiding ribs 52 may be straight, curved, gradual change, curved, etc., as long as the size of the gap opening can be changed.

Wherein, a plurality of water conservancy diversion muscle 52 are installed on return air circle 51, and return air circle 51 provides the mounted position for a plurality of water conservancy diversion muscle 52, and it is located a plurality of water conservancy diversion muscle 52 central point departments. The return air ring 51 is communicated with the fan assembly 4, and is used for returning the air flow to the fan assembly 4. Because the cross-sectional area of the air return ring 51 is far smaller than the inner cross-sectional area of the accommodating cavity 11, the external flow speed of the air return ring 51 is low, and the air flow temperature is high; after the airflow flows back to the air return ring 51, the airflow changes from the cross-sectional area of the accommodating cavity 11 to the cross-sectional area of the air return ring 51, that is, the cross-sectional area changes, so that the airflow velocity near the air return ring 51 is increased, and meanwhile, the airflow temperature is reduced due to heat exchange. By last can know, return air ring 51 outside and return air ring 51 inboard not only are formed with the temperature difference of air current, are formed with the speed difference of air current moreover, and then have realized that return air ring 51 is inboard with the comparatively even convection heat transfer effect in outside to promote and carry 2 central food heating effects of article.

The air return ring 51 can be processed and arranged together with a plurality of flow guide ribs 52 to be used as a part; or processed separately. When the return air ring 51 is separately processed, the return air ring 51 may be disposed at a position other than the return air ring 51, for example, a plurality of flow guiding ribs 52 are disposed at the periphery of the subsequently mentioned fan working blade 41 and are at the same level with the working blade 41; or a plurality of flow guiding ribs 52 are erected in the accommodating cavity 11; or a plurality of flow guiding ribs 52 are arranged on the flow guiding plate 53 or below the flow guiding plate 53, and are not in the same horizontal plane with the working blades 41, and the like. The guide rib 52 may be engaged with the guide plate 53.

Specifically, the return air ring 51 includes a first end 511 and a second end 512 opposite to each other, the opening size of the first end 511 is larger than that of the second end 512, and the first end 511 and the second end 512 are connected in an arc transition manner. The arc transition can reduce the airflow resistance and the flow noise. The air return ring 51 may also be disposed at the center of the loading part 2 near the air guide part, or at the side of the air guide part near the fan assembly 4, and its specific position is not limited. The air return ring 51 may also be erected in the accommodating cavity 11, or may also be disposed at a side of the center of the carrier 2 close to the flow guide member or a side of the flow guide member close to the fan assembly 4. The installation position of the return air ring 51 is not limited as long as the return air ring can be arranged at the return air position of the fan assembly 4 and can guide the air flow from the return air ring 51 to the fan assembly 4.

In the above embodiment, the deflector may include only the return air ring 51 and the plurality of deflector ribs 52.

Referring to fig. 7, fig. 7 is a schematic structural view of the baffle shown in fig. 1.

In practical terms, with reference to fig. 3 and 4, in an embodiment, the flow guiding member further includes a flow guiding plate 53, and the flow guiding plate 53 is provided with flow guiding holes 532, wherein the flow guiding holes 532 may be uniformly arranged flow guiding holes 532 (not illustrated) or non-uniform flow guiding holes 532, as shown in fig. 7. When the areas of the diversion holes 532 are equal from the center of the diversion plate 53 to the edge direction, different flow resistances are formed by gradually increasing the size of the gap from the center to the edge direction between the adjacent diversion ribs 52, so that the speed of the airflow in the horizontal direction is consumed, the airflow direction is converted to move towards the direction of the carrier 2, the airflow is prevented from rotating in the horizontal direction, and the circulation efficiency of the airflow in the accommodating cavity 11 is improved.

To further enhance the uniformity of airflow in the horizontal direction, the baffle 53 may be provided with non-uniform baffle holes 532. When the diversion holes 532 are non-uniformly distributed, the diversion holes 532 form spacing openings. In the direction of the edge to the center of guide plate 53, the area of guide hole 532 increases gradually on the unit area for guide plate 53 edge flow resistance is little, and guide plate 53 center department resistance is big, makes guide plate 53 center and edge flow resistance change, and then realizes the distribution uniformity of air current in the horizontal direction, and promotes food heating uniformity. The sizes of the diversion holes 532 may be increased at equal intervals or at unequal intervals, as long as the size of the diversion holes 532 in a unit area on the diversion plate 53 is increased gradually. The unit area is mainly used as a basis for comparing the sizes of the diversion holes 532, and can be any area measurement unit.

Further, the air return opening 531 is disposed on the air guide plate 53, and the air return opening 531 is disposed on the air guide plate 53. Wherein, the air return ring 51 is installed on the air return opening 531, and is used for air current to flow back to the fan assembly 4. The air return opening 531 may be formed at a central position of the baffle plate 53.

Specifically, since the area of the flow guide holes 532 in a unit area is related to the size of the flow guide holes 532 and the density of the flow guide holes 532, the area of the flow guide holes 532 in a unit area is adjusted by changing the size of the flow guide holes 532 and the density of the flow guide holes 532. The density of the flow guide holes 532 is the number of the flow guide holes 532 in a unit area, and the greater the number of the flow guide holes 532 is, the greater the density of the flow guide holes 532 is; otherwise, the density of the diversion holes 532 is smaller. The size of the diversion hole 532 is the area of one diversion hole 532 in a unit area, and the bigger the area of the diversion hole 532 is, the bigger the diversion hole 532 is; the smaller the diversion hole 532. The change of the size of the diversion holes 532 and the density of the diversion holes 532 has at least the following three conditions:

first, the size of the diversion holes 532 increases gradually from the center to the edge of the diversion plate 53, and the density of the diversion holes 532 is equal, that is, the area of the diversion holes 532 per unit area increases gradually from the center to the edge of the diversion plate 53.

Second, the diversion holes 532 have the same size from the center to the edge of the diversion plate 53, and the density of the diversion holes 532 gradually increases, that is, the area of the diversion holes 532 in a unit area gradually increases from the center to the edge of the diversion plate 53.

Third, the size and density of the baffle holes 532 increases from the center to the edge of the baffle 53.

The sizes and densities of the adjacent diversion holes 532 may be set at equal intervals or at unequal intervals, wherein the sizes and densities of the diversion holes 532 are not limited to the three cases, and may be other types of cases as long as the area of the diversion holes 532 in a unit area gradually increases from the center of the diversion plate 53 to the edge, which is not limited herein.

In the above embodiment, the flow guiding member may be a return air ring 51, a plurality of flow guiding ribs 52 and a flow guiding plate 53. When the fan component 4 works, high-speed airflow is formed, and the airflow moves uniformly towards the loading piece 2 under the action of the guide holes 532 which are arranged on the guide plate 53 in a non-uniform way; then the air current is under the effect of a plurality of water conservancy diversion muscle 52, and the speed of horizontal direction is consumed for the air current converts to and carries the motion of thing piece 2 direction, promotes the circulation efficiency of air current in holding chamber 11. That is, the flow guiding ribs 52 and the flow guiding holes 532 which are non-uniformly arranged on the flow guiding plate 53 work together to realize the air flow distribution in the horizontal direction, thereby improving the uniformity in the horizontal direction.

In another embodiment, the baffle comprises only the baffle 53, and the plurality of flow ribs 52 are not provided. In the direction from the center to the edge of the flow guide plate 53, the area of the flow guide holes 532 in unit area is gradually increased, so that the resistance change from the center to the outer side of the edge of the flow guide plate 53 is realized, and the airflow uniformity in the horizontal direction is realized. The non-uniform distribution of the diversion holes 532 is the same as the non-uniform distribution of the diversion holes 532 on the diversion plate 53 described in the above embodiments, and the details are not described herein.

In the actual process, in order to further promote the homogeneity of horizontal direction air current, set up a plurality of inhomogeneous trompil (not shown on the figure) on carrying thing piece 2, carry the center of thing 2 promptly to the edge in the direction, the area of trompil sets up to the crescent on the unit area for 2 edges of carrying thing department's air current flow resistance is less than carrying thing 2 center department air current flow resistance, promote the air-out homogeneity of air current horizontal direction, and then promote 2 food heating homogeneity of carrying thing, obtain better culinary art effect. The unit area is mainly used as a basis for comparison of the sizes of the openings, and may be any unit of area measurement.

Specifically, since the area of the openings per unit area is related to the size of the openings and the density of the openings, the area of the openings per unit area is adjusted by changing the size of the openings and the density of the openings. Wherein the density of the open pores is the number of the open pores in the unit area, and the more the number of the open pores is, the higher the density of the open pores is; otherwise, the density of the openings is smaller. The size of the opening is the area of one opening in a unit area, and the larger the area of the opening is, the larger the opening is; otherwise the smaller the opening. The above-mentioned variations in the size and density of the openings are at least the following three cases:

first, the size of the openings gradually increases from the center of the carrier 2 toward the edge, and the density of the openings is equal, that is, the area of the openings per unit area gradually increases from the center of the carrier 2 toward the edge.

Second, the size of the openings is equal in the direction from the center to the edge of the carrier 2, and the density of the openings gradually increases, that is, the area of the openings per unit area gradually increases in the direction from the center to the edge of the carrier 2.

Thirdly, the size and density of the openings increases from the center of the carrier 2 towards the edges.

The sizes and densities of the adjacent openings may be set at equal intervals or at unequal intervals, wherein the sizes and densities of the openings are not limited to the three cases, but may be other types of cases as long as the area of the openings in a unit area gradually increases from the center of the object carrying member 2 to the edge, and are not limited herein.

In an embodiment, referring back to fig. 3 and 4, the cooking appliance includes a heating element 3, the heating element 3 is disposed in the accommodating cavity 11, the heating element 3 is located on a side opposite to the food placing side of the object carrying component 2, wherein the heating element 3 is configured to provide heat, that is, the air flow formed by the fan component 4 passes through the heating element 3 to form a hot air flow, and the hot air flow heats the food on the object carrying component 2.

Further, the fan assembly 4 includes a working blade 41, and when the working blade 41 rotates, an air flow is formed. Because the flow velocity of the air flow formed outside the working blades 41 is high, the projection of the heating element 3 in the direction of the rotating shaft of the working blades 41 is positioned on the periphery of the working blades 41, so that the heating element 3 is directly flushed by the high-speed air flow, the temperature of the air flow is improved, and the heat exchange efficiency is improved.

For example, if the heat generating member 3 is disposed at the periphery of the working blade 41 and is disposed at the same level as the working blade 41, the highest heat exchange efficiency of the airflow at the accessory of the heat generating member 3 is achieved. When the heating member 3 is disposed at the outer periphery of the working blades 41, the flow guide member is located between the heating member 3 and the carrying member 2.

If the plurality of flow guiding ribs 52 are disposed at the periphery of the fan blade 41 and are at the same level with the blade 41, the heat generating element 3 may be disposed between the carrier 2 and the flow guiding plate 53, as long as the projection of the heat generating element 3 in the direction of the rotation axis of the blade 41 is located at the periphery of the blade 41, which is not limited herein. The baffle 53 may also be disposed at the outer periphery of the fan blade 41, and is not limited herein.

The fan assembly 4 may be a centrifugal fan or the like. The heating member 33 may be a heating tube or a PTC (Positive Temperature Coefficient) heating device, and is not limited herein.

In an embodiment, the housing 1 includes a base 12 and a cover 13, and the cover 13 is disposed on the base 12, so that the accommodating cavity 11 forms a closed space for heating food. The accommodating cavity 11 is formed in the base 12, the accommodating cavity 11 has an opening, and the object carrying member 2 is disposed at the opening to facilitate assembly or disassembly of the object carrying member 2.

Referring to fig. 8, fig. 8 is a schematic structural diagram of B shown in fig. 3.

With reference to fig. 3, when the fan assembly 4 works, heat is generated in the fan assembly, so that a motor heat dissipation loop structure is formed in the housing 1 to ensure the heat dissipation of the fan assembly 4 and reduce the temperature of the fan assembly 4. Specifically, the fan assembly 4 includes a motor 42, a working blade 41, and a heat dissipating blade 43, and the working blade 41 and the heat dissipating blade 43 are connected to an output shaft of the motor 42. The working blades 41 are rotated for heating the food on the carrier 2. The heat dissipating blades 43 are used to dissipate heat from the motor 42 during operation.

The base 12 includes a base 121, the base 121 is provided with a motor receiving boss 1211, and the motor 42 is disposed on the motor receiving boss 1211. The base 12 further includes a connecting cover 122, the connecting cover 122 covers the motor receiving boss 1211 and is installed in the base 12, and both of them form a cavity, i.e. the heat dissipating blades 43 are installed in the cavity. One end of the output shaft of the motor is connected to the motor 42, and the other end of the output shaft of the motor penetrates through the motor receiving boss 1211 and is connected to the heat dissipating blade 43, and continues to penetrate through the connecting cover 122 and is connected to the working blade 41.

In order to dissipate heat from the motor 42, the motor receiving boss 1211 is respectively communicated with the cavity and the outside air, that is, the air flow formed by the heat dissipating blades 43 is communicated with the inside of the motor receiving boss 1211 to dissipate heat from the motor 42, and is communicated with the outside air through the motor receiving boss 1211 to dissipate the heat to the outside air.

Specifically, a heat dissipation hole is formed at one end of the motor accommodating boss 1211 close to the heat dissipation blade 43; a plurality of through holes are disposed at the bottom of the base 121 near the motor receiving boss 1211, so that the heat dissipating blades 43 form an air flow to communicate with the external environment through the plurality of heat dissipating holes and the plurality of through holes, thereby dissipating heat from the motor 42.

This embodiment cooking utensil includes the casing, carries article, fan subassembly and water conservancy diversion spare, and the casing is formed with the holding chamber, carries the article and all is located the holding intracavity with the fan subassembly, and the fan subassembly is located the food of carrying the article and places the looks dorsal part of side to it has the low density, the characteristics that naturally rise to utilize the hot gas flow, thereby to carrying the motion of article. Furthermore, the flow guide piece is arranged between the fan assembly and the object carrying piece, and the flow resistance of the outer side of the flow guide piece is smaller than the flow resistance of the center of the flow guide piece, so that the change of the flow resistance of the air flow is changed, the uniform distribution of the air flow in the horizontal direction is realized, and the heating uniformity of food is improved.

The above description is only for the purpose of illustrating embodiments of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application or are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.

Claims

1. A cooking appliance, characterized in that it comprises:

a housing formed with an accommodating chamber;

the object carrying piece is arranged in the accommodating cavity;

the fan assembly is arranged in the accommodating cavity and is positioned on the opposite side of the food placing side of the object carrying body;

the flow guide piece is arranged between the fan assembly and the carrier piece, and the flow resistance of the outer side of the flow guide piece is smaller than the flow resistance of the center of the flow guide piece.

2. The cooking appliance according to claim 1, wherein the deflector is formed with a plurality of spaced openings, the size of which is gradually increased per unit area in a center-to-edge direction of the deflector.

3. The cooking appliance of claim 2, wherein the deflector comprises a return air ring and a plurality of deflector ribs connecting the return air ring, and the spacing openings are formed between adjacent deflector ribs.

4. The cooking utensil of claim 3 wherein the deflector further comprises a deflector having an air return opening and deflector holes, the air return opening being disposed in the center of the deflector, the deflector holes increasing in area per unit area in a direction from the center to the edge of the deflector; the air return inlet and the air return ring are both communicated with the fan assembly.

5. The cooking appliance of claim 4, wherein the deflector holes increase in size in a direction from the center to the edge of the deflector, and the density of the deflector holes is equal in a direction from the center to the edge of the deflector;

or the sizes of the diversion holes are equal from the center to the edge of the diversion plate, and the density of the diversion holes is gradually increased from the center to the edge of the diversion plate;

or the size and the density of the diversion holes are gradually increased from the center to the edge of the diversion plate.

6. The cooking appliance of claim 3, wherein said return coil includes opposite first and second ends, said first end having an opening sized larger than said second end, said first and second ends being in an arcuate transition.

7. The cooking appliance of claim 2, wherein the deflector comprises a deflector plate, and a return air opening and a deflector hole are formed in the deflector plate, the return air opening is formed in the deflector plate, and the deflector hole forms the partition opening.

8. The cooking appliance according to any one of claims 1 to 7, wherein the cooking appliance comprises a heat generating member disposed in the accommodating chamber and located on a side opposite to the food placing side of the carrier, and the working air generated by the fan assembly flows through the heat generating member toward the carrier.

9. The cooking appliance of claim 8, wherein the fan assembly includes a working blade, and a projection of the heat generating member in a direction of a rotation axis of the working blade is located at an outer periphery of the working blade.

10. The cooking appliance of claim 9, wherein the deflector is disposed around the working blade, and the heat generating member is located between the deflector and the carrier;

or the heating part is arranged around the working blade, and the flow guide part is positioned between the heating part and the object carrying part.

11. The cooking appliance of any one of claims 1 to 7, wherein the housing comprises:

the seat body forms the accommodating cavity, and the accommodating cavity is provided with an opening; the carrying piece is arranged at the opening;

the cover body is arranged on the seat body in a covering mode.

12. The cooking appliance of claim 11, wherein the fan assembly includes a motor, a rotor blade and a heat sink blade coupled to an output shaft of the motor; the pedestal includes:

the base is provided with a motor accommodating boss, and the motor output shaft penetrates through the motor accommodating boss; the connecting cover is covered on the motor accommodating boss and is provided with a cavity; the radiating blades are positioned in the cavity, the motor output shaft penetrates through the connecting cover, and the part penetrating out of the connecting cover is connected with the working blades; wherein the motor accommodating boss is respectively communicated with the cavity and the outside air.